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2115231148800 = 283452711192789
BaseRepresentation
bin11110110001111101100…
…110011110101100000000
321111012210002120201110000
4132301331212132230000
5234123443133230200
64255420200240000
7305551254052140
oct36617546365400
97435702521400
102115231148800
11746078926470
122a1b42770000
13124608761ca3
1474540704920
153a04e48a300
hex1ec7d99eb00

2115231148800 has 2160 divisors, whose sum is σ = 10267705324800. Its totient is φ = 416246169600.

The previous prime is 2115231148759. The next prime is 2115231148817. The reversal of 2115231148800 is 88411325112.

It is a happy number.

2115231148800 is a `hidden beast` number, since 2 + 1 + 1 + 523 + 11 + 48 + 80 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (2160).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 758417806 + ... + 758420594.

It is an arithmetic number, because the mean of its divisors is an integer number (4753567280).

Almost surely, 22115231148800 is an apocalyptic number.

2115231148800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2115231148800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5133852662400).

2115231148800 is an abundant number, since it is smaller than the sum of its proper divisors (8152474176000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2115231148800 is a wasteful number, since it uses less digits than its factorization.

2115231148800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2864 (or 2836 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The spelling of 2115231148800 in words is "two trillion, one hundred fifteen billion, two hundred thirty-one million, one hundred forty-eight thousand, eight hundred".